Synaptic transmission plays a central role in the nervous system as the mechanism that allows for chemical and electrical communication between cells and thus connects discrete elements into the functioning whole. This is a broad account of anatomical, biochemical, embryological, medical, pathological, pharmacological, and physiological studies on synaptic transmission during the hundred years beginning in 1890. During this century, the process of synaptic transmission came to be recognized not only as the most fundamental neurophysiological process, but also as a seat of pathological...